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    HEAT STABILITY OF PIGMENTABLE SILICONE ELASTOMERS
    21.
    发明申请
    HEAT STABILITY OF PIGMENTABLE SILICONE ELASTOMERS 审中-公开
    可溶性硅氧烷弹性体的热稳定性

    公开(公告)号：WO1982002558A1

    公开(公告)日：1982-08-05

    申请号：PCT/US1981001562

    申请日：1981-11-25

    Applicant: DOW CORNING CORP

    Inventor： DOW CORNING CORP ,  PRZYBYLA RICHARD LEONARD ,  CORNELIUS DAVID JAMES

    IPC: C08L83/06

    CPC classification number: C08K3/346 ,  C08K5/14 ,  C08K9/06 ,  C08L83/04

    Abstract: Procede d'amelioration de la stabilite a la chaleur d'elastomeres aux silicones. On produit une composition pigmentable elastomere aux silicones en melangeant une composition elastomere aux silicones presentant une teneur en radicaux vinyle de 0,01 a 0,1% en poids avec du kaolin pretraite dont la surface specifique est inferieure a 50 m2 par gramme, cette surface contenant des groupes siloxy olefiniques non satures, et un agent de vulcanisation organique a base de peroxyde. La composition amelioree est formee, puis chauffee afin d'etre vulcanisee, pour donner un elastomere aux silicones presentant une resistance amelioree aux effets des temperatures elevees. La composition elastomere aux silicones ameliores peut etre pigmentee.

    TRANPARENT THERMOPLASTICS CONTAINING ORGANOSILICON COMPOUNDS
    24.
    发明申请
    TRANPARENT THERMOPLASTICS CONTAINING ORGANOSILICON COMPOUNDS 审中-公开
    含有机硅氧烷化合物的热塑性弹性体

    公开(公告)号：WO1982000150A1

    公开(公告)日：1982-01-21

    申请号：PCT/US1981000737

    申请日：1981-06-01

    Applicant: DOW CORNING CORP

    Inventor： DOW CORNING CORP ,  VINCENT G ,  KALINOWSKI R

    IPC: C08J03/18

    CPC classification number: C08G77/14 ,  C08K5/549

    Abstract: Les produits de condensation de phenyltrialcoxysilanes (et eventuellement methyltrialcoxysilanes) et 2-methyle-2,4-pentane diol contenant au moins 25% en poids de radicaux phenyles sont utilises comme lubrifiants internes pour des materiaux thermoplastiques transparents. Par exemple, 1% en poids de (FORMULE) est ajoute au polystyrene pour donner un materiau optiquement transparent ayant de bonnes proprietes de surface.

    DC TO AC INVERTER
    25.
    发明申请
    DC TO AC INVERTER 审中-公开
    直流到交流逆变器

    公开(公告)号：WO1981003723A1

    公开(公告)日：1981-12-24

    申请号：PCT/US1981000575

    申请日：1981-04-24

    Applicant: DOW CORNING CORP

    Inventor： DOW CORNING CORP ,  ROTOLO G

    IPC: H02M07/537

    CPC classification number: H02M7/483

    Abstract: A direct current to alternating current inverter includes no transformer or inductors in the power circuit, thereby avoiding losses normally associated with such components. The inverter includes a low power, sinusoidal signal source (10) rectified to provide a rectified reference sine wave, a series string of battery groups (26), (28), (30) and (32), an output bridge circuit (14) connected to the rectified reference sine wave to provide an alternating output waveform conforming to the rectified reference sine wave, and a series of electrical switches (42), (44) and (46) responsive to the rectified sine wave to sequentially switch associated battery groups to the output bridge circuit (14), thereby adding power from the batteries to the alternating output waveform.

    DEWATERING FINE COAL SLURRIES USING TWO TYPES OF ORGANOPOLYSILOXANES
    26.
    发明申请
    DEWATERING FINE COAL SLURRIES USING TWO TYPES OF ORGANOPOLYSILOXANES 审中-公开
    使用两种类型的有机硅氧烷的脱水精炼煤浆

    公开(公告)号：WO1981003483A1

    公开(公告)日：1981-12-10

    申请号：PCT/US1981000237

    申请日：1981-02-26

    Applicant: DOW CORNING CORP

    Inventor： DOW CORNING CORP ,  SWIHART T

    IPC: C02F01/56

    CPC classification number: C02F1/545 ,  B01D37/03

    Abstract: Aqueous slurries of fine coal are dewatered by a process which comprises mixing a mixture of a water-soluble organopolysiloxane and a water-emulsifiable organopolysiloxane with the slurry, separating the slurry to recover the fine coal and further drying the fine coal, if desired. The use of a mixture of a water-soluble organopolysiloxane and a water-emulsifiable organopolysiloxane unexpectedly provides improved separating and/or improved drying of fine coal compared to a dewatering process that uses only one of the organopolysiloxanes.

    NOVEL MERCAPTOORGANOPOLYSILOXANES
    27.
    发明申请
    NOVEL MERCAPTOORGANOPOLYSILOXANES 审中-公开
    新鲜的甘油三酯

    公开(公告)号：WO1981001566A1

    公开(公告)日：1981-06-11

    申请号：PCT/US1980001517

    申请日：1980-11-10

    Applicant: DOW CORNING CORP

    Inventor： DOW CORNING CORP ,  HOMAN G ,  BLEVINS J

    IPC: C08G77/22

    CPC classification number: C08G77/28 ,  C08G77/045

    Abstract: Organopolysiloxanes which contain aliphatic unsaturation and silicon-bonded alkoxy groups where the alkoxy groups are present in the form of units such as (FORMULA) where n is 2 to 4, m is 1 to 6, a is 0 or 1 and R is lower alkyl are useful as adhesion promoters for silicone elastomers.

    OXYGEN-CURABLE MERCAPTOORGANOSILOXANE COMPOSITIONS CONTAINING BOTH REDOX AND IRON CARBONYL COMPOUNDS AND METHOD OF FORMING HIGHER MOLECULAR WEIGHT PRODUCTS THEREFROM
    28.
    发明申请
    OXYGEN-CURABLE MERCAPTOORGANOSILOXANE COMPOSITIONS CONTAINING BOTH REDOX AND IRON CARBONYL COMPOUNDS AND METHOD OF FORMING HIGHER MOLECULAR WEIGHT PRODUCTS THEREFROM 审中-公开
    包含二氧化碳和铁类碳化合物的含氧可熔融的羧甲基纤维素组合物及其形成较高分子量的产品的方法

    公开(公告)号：WO1981001562A1

    公开(公告)日：1981-06-11

    申请号：PCT/US1980001551

    申请日：1980-11-19

    Applicant: DOW CORNING CORP

    Inventor： DOW CORNING CORP ,  HOMAN G ,  CHILONG L

    IPC: C08G77/06

    CPC classification number: C08K3/30 ,  C08K3/18 ,  C08K3/22 ,  C08K5/56 ,  C08L83/08

    Abstract: Compositions, stable in the absence of oxygen, are formed by mixing the following substantially in the absence of oxygen: (A) 100 parts by weight of at least one mercapto-functional organosiloxane containing at least two mercapto-functional substituents per molecule; (B) a catalytic amount of an iron carbonyl compound catalyst selected from the group consisting of Fe(CO)5, Fe2(CO)9, Fe3(CO)12, dicyclopentadienyldiiron tetracarbonyl, butadieneiron tricarbonyl and cyclohexadieneiron tricarbonyl, preferably from 0.1 to 6 parts by weight of catalyst per 100 parts by weight of part (A); (C) optionally, at least one filler; and (D) 0.1 to 6 parts by weight per 100 parts by weight of redox compound such as copper (II) sulfate or iron (III) oxide. The compositions polymerize or cure to form higher molecular weight products upon exposure to oxygen. The use of a redox compound appears to increase the cross-link density of the cured composition and results in harder resins and more durable elastomers. An important novel feature of the redox compounds is that their use enables one to formulate compositions which cure to low-modulus elastomers possessing excellent unprimed adhesion to many common substrates such as glass, metal and concrete. Such low-modulus elastomeric compositions are very desirable for use as building sealants.

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